Study On Slope Stability In Shunxing Surface Coal Mine

Slope stability analysis is the hotspot and difficulty in research of both geotechnical engineering and surface mining. Scientific analysis of slope stability and reasonable design of slope shape aiming at the slope engineering geological conditions in surface mines is the important precondition for open-pit mine stripping engineering design and implementation of security.Based on the actual conditions in Shunxing Surface Coal Mine of Datang Hulunbeier Power Development Co., LTD., the north and south side slope and dump slope stability are studied with the integrated use of field research, theoretical analysis and limit equilibrium method and numerical simulation. On the basis of the analysis of slope engineering geological features and the deformation failure mechanism and the selection of the physical and mechanical parameters of rock and soil mass, the stability of the north and south side slope and the dump slope under the condition of different forms are respectively calculated, then the slope form that can satisfy the requirement of safety coefficient were determined. The slope of the displacement, stress distribution characteristics and the characteristics of the plastic zone distribution were simulated, then the types of the slope landslide mechanics genetic mechanism was analyzed and the mechanism of landslide were revealed, which can lay a solid foundation for the slope treatment in the surface mine.